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Product Summary

400, 421, 3.875" Stroke, 400 mains Main Journal Style

  • Designed and engineered at SCAT
  • Features straight shot & chamfered oil holes
  • Has a 2.100" rod pin and weighs only 55 lbs.
  • It is nitride hardened for superior wear resistance
  • Internally balanced to use neutral balance dampers, flywheels or flexplate

Key Specs

MFG. Part #440076
Stroke3.875"
Main Journal Style400 mains
Crankshaft MaterialForged 4340 Steel
Main Journal Diameter2.648"

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Details

As you make more and more power it becomes more important to use quality parts. These Scat 4340 forged steel cranks will help keep your motor alive.

  • Straight shot & chamfered oil holes
  • Nitride hardened for superior wear reisistance
  • Lightening holes in all rod throws
  • Large radius on all journals
  • Heat treated, shot peened
  • Designed at SCAT
  • Engineered at SCAT
  • Inspected & micropolished at SCAT
  • For 2-piece rear main blocks
  • Internally balanced to use neutral balance dampers, flywheels or flexplates
  • 2.100" rod pin
  • 55 lbs.

Item Details

3.875" stroke - 400 mains - 6.0" rods

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Specifications

KEY SPECS
MFG. Part #440076
BrandScat
Stroke3.875"
Main Journal Style400 mains
Crankshaft MaterialForged 4340 Steel
Main Journal Diameter2.648"
GENERAL
Rod Journal Diameter2.100"
Rear Main Seal Style2-piece
Connecting Rod Length6.000"
Weight55 lbs.
GTIN Code846091012450
Notesinternally balanced
Sold in QuantityEach